could underlie
Verbe irrégulier : underlie - underlay- underlain
Traduction française : sous-tendre - être à la base de 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could underlie
you could underlie
she could underlie
we could underlie
you could underlie
they could underlie 	I could be underlying
you could be underlying
she could be underlying
we could be underlying
you could be underlying
they could be underlying	I could have underlain
you could have underlain
she could have underlain
we could have underlain
you could have underlain
they could have underlain	I could have been underlying
you could have been underlying
she could have been underlying
we could have been underlying
you could have been underlying
they could have been underlying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't underlie
you couldn't underlie
she couldn't underlie
we couldn't underlie
you couldn't underlie
they couldn't underlie 	I couldn't be underlying
you couldn't be underlying
she couldn't be underlying
we couldn't be underlying
you couldn't be underlying
they couldn't be underlying	I couldn't have underlain
you couldn't have underlain
she couldn't have underlain
we couldn't have underlain
you couldn't have underlain
they couldn't have underlain	I couldn't have been underlying
you couldn't have been underlying
she couldn't have been underlying
we couldn't have been underlying
you couldn't have been underlying
they couldn't have been underlying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I underlie?
could you underlie?
could she underlie?
could we underlie?
could you underlie?
could they underlie? 	could I be underlying?
could you be underlying?
could she be underlying?
could we be underlying?
could you be underlying?
could they be underlying? 	could I have underlain?
could you have underlain?
could she have underlain?
could we have underlain?
could you have underlain?
could they have underlain? 	could I have been underlying?
could you have been underlying?
could she have been underlying?
could we have been underlying?
could you have been underlying?
could they have been underlying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I underlie?
couldn't you underlie?
couldn't she underlie?
couldn't we underlie?
couldn't you underlie?
couldn't they underlie? 	couldn't I be underlying?
couldn't you be underlying?
couldn't she be underlying?
couldn't we be underlying?
couldn't you be underlying?
couldn't they be underlying? 	couldn't I have underlain?
couldn't you have underlain?
couldn't she have underlain?
couldn't we have underlain?
couldn't you have underlain?
couldn't they have underlain? 	couldn't I have been underlying?
couldn't you have been underlying?
couldn't she have been underlying?
couldn't we have been underlying?
couldn't you have been underlying?
couldn't they have been underlying?